To make the whole engine shake the part making the noise has to be pretty substantial. With it in gear and stopped with clutch pulled in no shafts should be turning. Hence no noise at all. No mention of repair history, so.Using a long screwdriver as a stethoscope I think the noise is coming from inside the transmission but it is pretty violent and whereever I place the screwdriver it is just as loud since it vibrates the engine a great deal. I wil try it again when I get home and borrow a real mechanics stethoscope from my neighbor.
I can't really tell much from that video sound myself. Could be a 4th gear issue starting.John,
I was just to your YouTube video and had a listen…
A quick link for others… http://youtu.be/BpwJTSz5cw4
I too had this same, EXACT SAME noise and I hate to be the bearer of bad news but that sounds a lot like the 4th gear issue. That’s how mine ended up before I said enough was enough and replaced the engine with a 97 power plant.
Some describe it as an empty pop can with a few rocks shaking around in it. Mine started off with it doing it only in the lower gears while driving. I never had an issue with it popping out of 4th like some have. That noise will turn into more of a grinding sound.
Mine got so bad I was really concerned that it would lock the engine during mid flight. Not something I would want to happen while riding. Some say that can’t happen but I don’t particularly believe that statement. Take a tooth off a gear or a chunk of steel and get it caught in the teeth of another fast rotating gear… what do you think would happen?
Sorry buddy… It’s engine replacement time.